Thailand Tightens Checks on Cash Transactions of 5 Million Baht or More

Starting November 1, 2026, Thailand will introduce tighter controls on cash transactions valued at 5 million baht or more. The scope of these regulations extends beyond simple cash deposits to cover exchanges of Thai baht banknotes, deposits of cheques or drafts with unclear origins, and cash payments for issuing cheques or drafts. Significantly, the measures also encompass foreign currency transactions and payments for financial products such as insurance premiums, investment products, and financial derivatives.

Under this new framework, banks are mandated to evaluate customer risk profiles. For transactions that raise concerns, institutions may request detailed information regarding the source and purpose of funds, along with supporting documentation. Should a transaction trigger enhanced due diligence (EDD) and banks are unable to complete the necessary verification, they are required not to proceed. This indicates a heightened responsibility for financial institutions in preventing illicit fund flows.

The regulations also establish distinct identity verification requirements for individuals without an existing banking relationship, specifically for cash-related transactions of 2 million baht or more, and foreign currency transactions exceeding 500,000 baht. These requirements apply to transactions conducted at bank branches, though the Bank of Thailand has clarified that access to electronic banking services will not be affected. These measures align with the Bangkok Blueprint for Fraud-Resilient Financial Services, a collaborative initiative by the BOT, International Monetary Fund, and World Bank Group.